当我打开由cloudflare保护的网站时遇到问题,它总是返回503服务器不可用,但如果我用浏览器打开,比如firefox,它可以正常工作
Function url_req(url_web As String)
Dim request As HttpWebRequest = DirectCast(HttpWebRequest.Create(url_web), HttpWebRequest)
Using WebResponse As HttpWebResponse = DirectCast(request.GetResponse(), HttpWebResponse)